<!--
 * @Descripttion: 表单表格
 * @version: 1.3
 * @Author: sakuya
 * @Date: 2023年2月9日12:32:26
 * @LastEditors: sakuya
 * @LastEditTime: 2023年2月17日10:41:47
-->

<template>
	<div class="sc-form-table" ref="scFormTable">
		<el-table :data="data" ref="table" :border="border" :stripe="stripe">
			<el-table-column type="index" width="50" fixed="left" v-if="!hideIndex">
				<template #header>
					<el-button v-if="!hideAdd" type="primary" icon="el-icon-plus" size="small" circle
						@click="rowAdd"></el-button>
				</template>
				<template #default="scope">
					<div :class="['sc-form-table-handle', {'sc-form-table-handle-delete':!hideDelete}]">
						<span>{{scope.$index + 1}}</span>
						<el-button v-if="!hideDelete" type="danger" icon="el-icon-delete" size="small" plain circle
							@click="rowDel(scope.row, scope.$index)"></el-button>
					</div>
				</template>
			</el-table-column>

			<template v-if="$slots.dragSort">

			</template>

			<el-table-column v-else label="" width="50" v-if="dragSort">
				<template #default>
					<div class="move" style="cursor: move;"><el-icon-d-caret style="width: 1em; height: 1em;" /></div>
				</template>
			</el-table-column>

			<slot></slot>
			<template #empty>
				{{placeholder}}
			</template>
		</el-table>
	</div>
</template>

<script>
	import Sortable from 'sortablejs'

	export default {
		props: {
			border: {
				type: Boolean,
				default: true
			},
			stripe: {
				type: Boolean,
				default: true
			},
			modelValue: {
				type: Array,
				default: () => []
			},
			addTemplate: {
				type: Object,
				default: () => {}
			},
			placeholder: {
				type: String,
				default: "暂无数据"
			},
			dragSort: {
				type: Boolean,
				default: false
			},
			hideAdd: {
				type: Boolean,
				default: false
			},
			hideDelete: {
				type: Boolean,
				default: false
			},
			hideIndex: {
				type: Boolean,
				default: false
			}
		},
		data() {
			return {
				data: []
			}
		},
		mounted() {
			this.data = this.modelValue
			if (this.dragSort) {
				this.rowDrop()
			}
		},
		watch: {
			modelValue() {
				this.data = this.modelValue
			},
			data: {
				handler() {
					this.$emit('update:modelValue', this.data);
				},
				deep: true
			}
		},
		methods: {
			rowDrop() {
				const _this = this
				const tbody = this.$refs.table.$el.querySelector('.el-table__body-wrapper tbody')
				Sortable.create(tbody, {
					handle: ".move",
					animation: 300,
					ghostClass: "ghost",
					onEnd({
						newIndex,
						oldIndex
					}) {
						_this.data.splice(newIndex, 0, _this.data.splice(oldIndex, 1)[0])
						const newArray = _this.data.slice(0)
						const tmpHeight = _this.$refs.scFormTable.offsetHeight
						_this.$refs.scFormTable.style.setProperty('height', tmpHeight + 'px')
						_this.data = []
						_this.$nextTick(() => {
							_this.data = newArray
							_this.$nextTick(() => {
								_this.$refs.scFormTable.style.removeProperty('height')
							})

						})
					}
				})
			},
			rowAdd(item = {}, uniqueKey = null) {
				const temp = JSON.parse(JSON.stringify(this.addTemplate || {}))

				var row = {
					...temp,
					...item
				};

				if (uniqueKey) {
					var isHas = this.data.find(item => item[uniqueKey] == row[uniqueKey])
					if (isHas) {
						return;
					}
				}

				this.data.push(row)
			},
			rowDel(row, index) {
				this.data.splice(index, 1)
			},
			//插入行
			pushRow(row) {
				const temp = row || JSON.parse(JSON.stringify(this.addTemplate))
				this.data.push(temp)
			},
			//根据index删除
			deleteRow(index) {
				this.data.splice(index, 1)
			}
		}
	}
</script>

<style scoped>
	.sc-form-table {
		width: 100%;
	}

	.sc-form-table .sc-form-table-handle {
		text-align: center;
	}

	.sc-form-table .sc-form-table-handle span {
		display: inline-block;
	}

	.sc-form-table .sc-form-table-handle button {
		display: none;
	}

	.sc-form-table .hover-row .sc-form-table-handle-delete span {
		display: none;
	}

	.sc-form-table .hover-row .sc-form-table-handle-delete button {
		display: inline-block;
	}

	.sc-form-table .move {
		text-align: center;
		font-size: 14px;
		margin-top: 3px;
	}
</style>
